我正在构建一个Java Swing应用程序,我希望它能以这种方式工作:
调整窗口大小时,JScrollPane
对象(在JSplitPane
范围内)应重新设置其最小,最大和首选大小,并将其作为当前窗口宽度的参考。
我在componentResized()
类的方法ComponentAdapter
上修复了此设置,但是,它不能像假设那样工作。
这是代码。我希望你在电脑上测试一下,可以帮助我。
非常感谢你付出的时间。
import java.awt.event.*;
import java.awt.geom.*;
import javax.swing.*;
import java.awt.*;
public class ComVisor extends JFrame
{
private JList imagesList;
private JPanel imagePanel;
private JSplitPane mainPanel;
private JScrollPane scrollPanelRight;
private int width;
public ComVisor(String nameApplication)
{
setFrame(nameApplication);
setComponents();
}
private void setFrame(String nameApplication)
{
setLayout(new BorderLayout(1, 3));
setTitle(nameApplication);
setMinimumSize(new Dimension(400, 200));
setDefaultCloseOperation(EXIT_ON_CLOSE);
setSize(new Dimension(Toolkit.getDefaultToolkit().getScreenSize()));
setLocationRelativeTo(null);
this.addWindowListener(
new WindowAdapter()
{
@Override
public void windowClosing(WindowEvent e)
{
JOptionPane.showMessageDialog(ComVisor.this, nameApplication + "-Salida");
return;
}
}
);
this.addComponentListener(
new ComponentAdapter()
{
@Override
public void componentResized(ComponentEvent E)
{
width = getWidth();
scrollPanelRight.setPreferredSize(new Dimension(width / 3, 0));
scrollPanelRight.setMinimumSize(new Dimension(width / 7, 0));
scrollPanelRight.setMaximumSize(new Dimension(width / 5 * 4, 0));
return;
}
}
);
}
private void setComponents()
{
String[] a = {"dsdsdsd", "dsdsdkkhskj", "dskhkjdhskjdhksdh", "sdskdhskjhds"};
JButton b = new JButton("Soy un boton xD");
JPanel p = new JPanel();
imagesList = new JList(a);
p.add(b);
imagesList.setVisibleRowCount(100);
scrollPanelRight = new JScrollPane(imagesList);
mainPanel = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, scrollPanelRight, p);
add(mainPanel, BorderLayout.CENTER);
return;
}
private class Manejador implements ActionListener
{
@Override
public void actionPerformed(ActionEvent listener)
{
return;
}
}
}
这是主类,它调用一个Comvisor对象
import static javax.swing.SwingUtilities.invokeLater;
public class Principal
{
public static void main(String[] args)
{
invokeLater(
new Runnable()
{
@Override
public void run()
{
new ComVisor("ComVisor").setVisible(true);
return;
}
}
);
return;
}
}